Primary radiation diaphragm
US5086444A · kind A · utility
14Cited by
4References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 30, 1991 |
| Grant date | Feb 4, 1992 |
| Priority date | — |
| Expiry date | Jan 30, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21C1/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A primary radiation diaphragm for use in a medical radiation application apparatus for gating the x-ray beam emitted by a radiation source onto a desired region has first and second diaphragm plates and an actuator for the diaphragm plates having two ranges of adjustment. The first diaphragm plate is adjusted within the first range of adjustment by movement of the actuator, and the second diaphragm rate is adjusted by moving the actuator within the second range of adjustment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.